Compatibility Rating
At 20°C
Excellent
Excellent resistance - recommended for continuous use
At 50°C
Excellent
Excellent resistance - recommended for continuous use
Why is FEP resistant to Oleic Acid?
FEP shows excellent resistance to Oleic Acid due to its fully fluorinated structure similar to PTFE, offering near-universal chemical resistance.
⚠️ When NOT to use FEP
Avoid using FEP (Fluorinated Ethylene Propylene) with molten alkali metals and fluorine gas. Suitable up to 200°C.
Comparison Table — All Materials for Oleic Acid
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | C |
| LDPE | A | C |
| PP | A | C |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | NR | NR |
| EPDM | D | D |
| Viton (FPM) | B | B |
| NBR | C | NR |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | A | A |
| PVC Flexible | NR | NR |
| PMP | NR | NR |
| Polystyrene | A | C |
| SAN | A | C |
| Polycarbonate | A | NR |
| PETG | A | NR |
| Acetal (POM) | B | NR |
| Nylon (PA) | A | NR |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Good resistance at both 20°C and 50°C. Maximum service temperature for this material is 200°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: PTFE for higher temps. View all materials for Oleic Acid →
FAQ
Is FEP resistant to Oleic Acid?
FEP has Excellent (A) resistance to Oleic Acid at 20°C.
Can I store Oleic Acid in FEP?
Yes, FEP is rated A for Oleic Acid.